57673644 has 48 divisors (see below), whose sum is σ = 155232000. Its totient is φ = 16324416.

The previous prime is 57673643. The next prime is 57673657. The reversal of 57673644 is 44637675.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 57673596 and 57673605.

It is not an unprimeable number, because it can be changed into a prime (57673643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6007 + ... + 12305.

It is an arithmetic number, because the mean of its divisors is an integer number (3234000).

Almost surely, 2^57673644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57673644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77616000).

57673644 is an abundant number, since it is smaller than the sum of its proper divisors (97558356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57673644 is a wasteful number, since it uses less digits than its factorization.

57673644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6422 (or 6420 counting only the distinct ones).

The product of its digits is 423360, while the sum is 42.

The square root of 57673644 is about 7594.3165591118. The cubic root of 57673644 is about 386.3602728683.

The spelling of 57673644 in words is "fifty-seven million, six hundred seventy-three thousand, six hundred forty-four".